Di-tert-butyl(2',6'-dimethyl-[1,1'-biphenyl]-2-yl)phosphine CAS 298205-47-7

Purity 97%+In StockPharmaceutical Standards
CAS No.298205-47-7
Molecular FormulaC22H31P
Molecular Weight326.46 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Di-tert-butyl(2',6'-dimethyl-[1,1'-biphenyl]-2-yl)phosphine CAS 298205-47-7 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

Di-tert-butyl(2',6'-dimethyl-[1,1'-biphenyl]-2-yl)phosphine (CAS 298205-47-7), molecular formula C22H31P and molecular weight 326.46 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Di-tert-butyl(2',6'-dimethyl-[1,1'-biphenyl]-2-yl)phosphine (C22H31P) contains organophosphorus functionality, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 7.5, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 326.46 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

As a certified reference material (CRM), Di-tert-butyl(2',6'-dimethyl-[1,1'-biphenyl]-2-yl)phosphine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC22H31P
Molecular Weight326.46 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025

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